I have an issue with that.. one application was built to outsystemscloud.com with Service Studio 9.0.1.20. Service studio has been updated while developing other project, now my development environment version is 9.1.0.8. If I try to open the "old" project (done in september) it cannot be opened, saying that version is not compatible. And there is no such version in the download repository (http://www.outsystems.com/home/downloads/88/). Any ideas?

@Sorainen: This message says that the Service Studio version you are using is not compatible with the platform version you are using. It has nothing to do with the eSpace you are trying to open. You must install Service Studio 9.1 to access the development environment.

@Sorainen: This message says that the Service Studio version you are using is not compatible with the platform version you are using. It has nothing to do with the eSpace you are trying to open. You must install Service Studio 9.1 to access the development environment.

Agreed!! SOAP does have 'one-foot-in-the-grave' and we are in the process of phasing out our older apps and web services. Unfortunately, hundreds of them remain in production while our transition to REST occurs. Many of our old WCF services still have to be referenced while we slowly transition to our shiny new OutSystems apps. My plan is to get my user interfaces in place and into production (working in parallel with the old) referencing my current WCF services, then gradually updating to REST over time. See my dilemma?